Container and closure therefor



.Fuy 22, 1952 w. E. cRAMER "CONTAINER AND CLOSURE THEREFOR Filed Aug.16, 1948 F i @g2 INVENToR.

W lson E. Gramer ATTORNEY Patented July 22, 'i952 UNITED STATES 'PATENT'A"FEFIC l' l l l armatel y v ooN'rAINEaAND oLosUnEr'rHEREron Wilson E.Cramer, Sparta, Wis. l Application August 1c, 194s, serial Ns. 44,540

' '1 Claim. 1

This invention relates to a container for liquids and more particularlyto a milk can.

Formerly containers used inthe transport of milk have been of aconventional design wherein a cap is adapted to t inside a Aneck portionof the container. The cap, underrformer practice, has been retained inposition by a forced or pressed fit.' Inasrnuch as the cap was receivedinside of the neck portion and inasmuch as it was engaged in a forcednt, there was a tendency of the metal plate formed on the surfaces ofsuch containers to wear away. When the metal plate has worn away underthe eiects of such contact, the containers become unse-rviceableinasmuch as the liquid content is then exposed to bare metal. Likewisethe prior form of caps for milk containers have allowed the entrance ofdirt, foreign material and insects into the container when the lid isremoved.' Such foreign materials gather under the lip of the lid and asthe lid is removed,

vide a container having a galvanized or otherwise plated surface thatwill remain serviceable for a long period of time. Y

Another object of this invention is to provide a container havinggalvanized or otherwise plated surfaces that are free from wearingcontact on all liquid contacting surfaces.

' A still further object of this invention is to provide a novel milkcontainer and a lid therefor that may be Washed with existent automaticwashing equipment.

Another object of this invention is to provide a milk container and alid therefor that will prevent the entrance of dirt and other foreignmaterial.

Further objects and advantages of this invention will be apparent fromthe appended descrip- `tion and drawings in which:

Fig. 1 is a cross sectional elevation of an emf Y 2 .Y flared extremity.The cylindrical portion of the lid is arranged for a close iit withV theexterior walls oi the neck portion, thereby preventing leakage, and theflared extremity is arranged for engagement with a shoulder on the milkcan preventing entrance of dirt. y

The length of the cylindrical portion of the lid is such that when theflared section is in engagement with the shoulder the top of the lid isnot in contact with the upper extremity of the neck of the container.Thisnovel arrangement prevents any contact between the lid and thecontainer along any surfaces which liquid will contact or'over whichliquid will be poured. Inasmuch as there is no contact along thesesurfaces the' metal plating used will be preserved, the liquid will notbe contaminated, and the container will be ,usable for a longer periodof time.

Referring now to the drawings, Fig. 2 shows a Aseparate embodiment ofthis invention in which a container II having Va large cylindricalsection or body portion I2 and asmaller cylindrically formed necksectionI3 has aV shoulder lili interconnecting sections I2 and I3. WhileVsections l2 and I3 and shoulder I4 are shown as formed from one piece ofmaterial as by extrusion, rolling, or spinning it will be apparent thatother means of construction may be used. A lid member I6 havingcylindrical sides I1 and a top closure section I8 is arranged to closethe opening I9 formed at the upper extremity of neck section I3. Thecylindrical sides I'I of lid member I6 have a Vflared extremity 2l, andtop closure sectionA I 8 has a flange portion 22 extending beyondcylindrical sides I'I to provide a gripping means for removal of thelid. Cylindrical sides I'I are longer than the length of neck section I3so that ared extremity 2| will engage shoulder I4 when lid member I6 isplaced over neck section I3. Inasmuch as flared extremity 2| engagesshoulder I4, and inasmuch as cylindrical sides I'I are longer than necksection I3, the top closure section I8 will not be in engagement with apouring lip 23 formed on the upper extremity of neck section I3.

In a preferred embodiment of this invention as shown in Fig. l, acontainer IIa having a cylindrical section or body portion 2a joined toa neck section Ita by a shoulder' Ita provides an opening I 9a for thereception of liquids. Neck section I3a provides a double thickness ofmaterial 24, the outer thickness ZI being an extension of the innerthickness 28 doubled back upon the outer surface of the inner thickness28. Such double thickness is provided by rolling or spinning thematerial section -I 3a.

"types of fastening devices.

back upon itself, and the length of section I3a is such that the doublethickness of material 24 uses no more material than is now used inconventional milk cans. For purposes of added strength a welded fillet26 joins the outer thickness 21 to the inner thickness 28 at the base ofneck section I3a.

A lid member I6a being of the same dimensions as conventional milkcovers now in use and having cylindrical sides I'Ia and a top closuresection I8a is provided to seal opening I9a in the follow'- ing manner,Cylindrical sides Ila have a flared extremity 2Ia, and top closuresection I8a has a flange portion 22a extended beyond cylindrical sidesI'Ia. Cylindrical sides Ila-are longer than neck section I3a. When lidmember Ilia is engaged with neck section I3a cylindrical sides I'Iaengage the outer surface of outer thickness 21 of neck section I3a.Flared extremity 2Ia engages shoulder I 4a and inasmuch as cylindricalsides I'Ia are longer than neck section I3a topk closure section I8a isprevented from touching. a pouring lip 23a formed at the upper extremityof neck Flange portion 22a provides a gripping means for removing lidmember ISa from container IIa.

In use,`containers II are lled with any desirable liquid and lid membersI6 are placed on the 'containers II. Lid members I6 are in liquid tightengagement with neck sections I3 to prevent the escape of any liquids.Flared extremities 2l engage shoulders I4 to prevent the entrance of anyforeign materials into container I I. Inasmuch as lid members IB engageonly the Vouter surfaces of neck sections I3- any metal plate formed onthe surfaces of containers I I that might be removed by a close t willbe on outer surfaces of neck sections I3 or on shoulder I4. The innersurfaces of container II inclusive of a pouring lip 23 on the upperextremity of neck sections I3 will not be in metal-to-metal contact andconsequently the metal plate on these liquid contacting surfaces will bepreserved. l

While separate preferred embodiments of this invention have been shownand described it will be apparent that the invention is applicable tocertain obvious modifications. For instance, the present invention isadaptable to notch and pin Such obvious modications are considered to bewithin the scope of this invention and it is not intended to limit thisinvention to the embodiments shown and described. The essentiallimitations are included in the appended claim.

What is claimed is:

In a sanitary milk can having a body portion provided with a bottom andupright cylindrical walls, a neck portion also having uprightuninterrupted smooth cylindrical Walls and of smaller diameter than saidbody portion, an inclined shoulder portion interconnecting the uprightcylindrical walls of the body and neck portions, and a removable lidmember having depending uninterrupted smooth cylindrical wallstelescopically engaging the upright cylindrical walls of the neckportion and having a peripherally flanged top, the improvement whichcomprises forming the walls of the neck portion of the milk can of twothicknesses of material with the outer vthickness thereof being anextension of the inner thickness doubled back upon the outer surface 'ofsaid inner thickness substantially throughout the height of the neckportion with its lower free end terminating in close proximity to theshoulder portion, forming the lid member from relatively rigid smoothsurfaced material, the uninterrupted depending cylindrical walls of saidvlid member being of substantially greater height than the height of thedouble Walls of the neck portion of the can and having an annularoutwardly and downwardly flared bottom portion having substantially thesame inclination as the inclined shoulder portion and engaging theinclined shoulder portion of the can in face contacting relation whenthe lid is in place thereon whereby to maintain the inner surface of theflanged top of the lid member spaced from and out of contact with theupper edge of the cylindrical double walls of the neck portion.

WILSON E. CRAMER.

REFERENCES CITED The following references are of record in the file ofthis patent:

France Feb. 28, 1918

